Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885511 | Drive control with overload protection for a drill device | Gottfried Benz, Heinrich Pauli, Franz Hoyss | 1989-12-05 |
| 4823054 | Circuit for phase section control of an AC-DC motor | — | 1989-04-18 |
| 4820962 | Arrangement for automatic working data set-up for driving implements | — | 1989-04-11 |